diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0274-char-vc_mem-Fix-up-compat-ioctls-for-64bit-kernel.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0274-char-vc_mem-Fix-up-compat-ioctls-for-64bit-kernel.patch | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0274-char-vc_mem-Fix-up-compat-ioctls-for-64bit-kernel.patch b/target/linux/bcm27xx/patches-4.19/950-0274-char-vc_mem-Fix-up-compat-ioctls-for-64bit-kernel.patch deleted file mode 100644 index b0beb6d5c8..0000000000 --- a/target/linux/bcm27xx/patches-4.19/950-0274-char-vc_mem-Fix-up-compat-ioctls-for-64bit-kernel.patch +++ /dev/null @@ -1,111 +0,0 @@ -From 966ff2b4c758eb8c8c04f26422cd183e6aa8eda5 Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <dave.stevenson@raspberrypi.org> -Date: Wed, 23 Jan 2019 18:25:50 +0000 -Subject: [PATCH] char: vc_mem: Fix up compat ioctls for 64bit kernel - -compat_ioctl wasn't defined, so 32bit user/64bit kernel -always failed. -VC_MEM_IOC_MEM_PHYS_ADDR was defined with parameter size -unsigned long, so the ioctl cmd changes between sizes. - -Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> ---- - drivers/char/broadcom/vc_mem.c | 40 +++++++++++++++++++++++++++++---- - include/linux/broadcom/vc_mem.h | 4 ++++ - 2 files changed, 40 insertions(+), 4 deletions(-) - ---- a/drivers/char/broadcom/vc_mem.c -+++ b/drivers/char/broadcom/vc_mem.c -@@ -148,7 +148,7 @@ vc_mem_ioctl(struct file *file, unsigned - (void) cmd; - (void) arg; - -- pr_debug("%s: called file = 0x%p\n", __func__, file); -+ pr_debug("%s: called file = 0x%p, cmd %08x\n", __func__, file, cmd); - - switch (cmd) { - case VC_MEM_IOC_MEM_PHYS_ADDR: -@@ -167,7 +167,7 @@ vc_mem_ioctl(struct file *file, unsigned - // Get the videocore memory size first - vc_mem_get_size(); - -- pr_debug("%s: VC_MEM_IOC_MEM_SIZE=%u\n", __func__, -+ pr_debug("%s: VC_MEM_IOC_MEM_SIZE=%x\n", __func__, - mm_vc_mem_size); - - if (copy_to_user((void *) arg, &mm_vc_mem_size, -@@ -181,7 +181,7 @@ vc_mem_ioctl(struct file *file, unsigned - // Get the videocore memory base - vc_mem_get_base(); - -- pr_debug("%s: VC_MEM_IOC_MEM_BASE=%u\n", __func__, -+ pr_debug("%s: VC_MEM_IOC_MEM_BASE=%x\n", __func__, - mm_vc_mem_base); - - if (copy_to_user((void *) arg, &mm_vc_mem_base, -@@ -195,7 +195,7 @@ vc_mem_ioctl(struct file *file, unsigned - // Get the videocore memory base - vc_mem_get_base(); - -- pr_debug("%s: VC_MEM_IOC_MEM_LOAD=%u\n", __func__, -+ pr_debug("%s: VC_MEM_IOC_MEM_LOAD=%x\n", __func__, - mm_vc_mem_base); - - if (copy_to_user((void *) arg, &mm_vc_mem_base, -@@ -214,6 +214,35 @@ vc_mem_ioctl(struct file *file, unsigned - return rc; - } - -+#ifdef CONFIG_COMPAT -+static long -+vc_mem_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -+{ -+ int rc = 0; -+ -+ switch (cmd) { -+ case VC_MEM_IOC_MEM_PHYS_ADDR32: -+ pr_debug("%s: VC_MEM_IOC_MEM_PHYS_ADDR32=0x%p\n", -+ __func__, (void *)mm_vc_mem_phys_addr); -+ -+ /* This isn't correct, but will cover us for now as -+ * VideoCore is 32bit only. -+ */ -+ if (copy_to_user((void *)arg, &mm_vc_mem_phys_addr, -+ sizeof(compat_ulong_t))) -+ rc = -EFAULT; -+ -+ break; -+ -+ default: -+ rc = vc_mem_ioctl(file, cmd, arg); -+ break; -+ } -+ -+ return rc; -+} -+#endif -+ - /**************************************************************************** - * - * vc_mem_mmap -@@ -259,6 +288,9 @@ static const struct file_operations vc_m - .open = vc_mem_open, - .release = vc_mem_release, - .unlocked_ioctl = vc_mem_ioctl, -+#ifdef CONFIG_COMPAT -+ .compat_ioctl = vc_mem_compat_ioctl, -+#endif - .mmap = vc_mem_mmap, - }; - ---- a/include/linux/broadcom/vc_mem.h -+++ b/include/linux/broadcom/vc_mem.h -@@ -32,4 +32,8 @@ extern unsigned int mm_vc_mem_size; - extern int vc_mem_get_current_size( void ); - #endif - -+#ifdef CONFIG_COMPAT -+#define VC_MEM_IOC_MEM_PHYS_ADDR32 _IOR(VC_MEM_IOC_MAGIC, 0, compat_ulong_t) -+#endif -+ - #endif /* _VC_MEM_H */ |